HYDRO24106

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/14/1995
• Doc Name: 1st Qtr 1995 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC IN9P&CTION~FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: 03/29/95
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 12/15/94
SITE NAME: Truck Wash Settlino Pond LOCATION: NWU. NEY.. Sec 34. T6N. R87W
MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7 mi. SE of Hayden. CO
MINE I.D. NO.: CDMG Permit No. C-80-005 OWNER'S REP.: Scott Williams. Gen Mar
Circle or rites in aooronriate reanonae
1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A
2. Lift thickness: A inches
3. Compaction according to approved plan: Yes No /A
4. Burning (specify extent and location): ~ Yes No N
5. Angle of slope: upstream, downstream Total = N/A
6. +Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes No

At isolated points on embankment slopes:
Yes
No ~~~/AA~'

At natural hillside:
Yes
No (LV~
Over widespread areas: Yes lob N/A
From downstream foundation area: Yes (T1~ N/A
"Boils" beneath stream or ponded water: Yes ~ N/A
7. Cracks or scarps on crest: Yes No ~)
8. Cracks or scarps on slope: Yes No
9. Sloughing or bulging on slope: Yes No /A
10. *Major erosion problems: Yes No N/A
11. Surface movements in valley bottom or on hillside: Yes No /A
12. *Erosion of toe: Yes No
13. *Water impounded against toe: Yes No /
14. Existing embankment freeboard: See comments 3 feet
15. Increase Decrease in water level: No chance feet
16. Cracks, bulging, or erosion on upstream face: Yes ~ N/A
17. Visible sumps or sinkholes in slurry surface: Yes No N/
18. *Clogging
Spillway channels and pipes: Yes No N
Decant system: Yes o
Diversion ditches: Yes No CCC~~~(((~~~
19. *Cracking or crushing of pipes
Spillway pipes: Yes
Decant system: Yes No N/
20. Trash racks clear and in place: Yes No N/A
*Major adverse changes in these items could cause instability and should be reported to the
Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted
in these items should normally be described (extent, location, volume, etc.) in the space on
the back of this sheet.